The Dodgers have held onto all three, despite plenty of chances to trade them. The Dodgers believe — and they are not alone — that the best chance for long-term success is to retain their very best prospects and blend them onto the major league roster.
Dave Dombrowski, the general manager of the Boston Red Sox, does not agree. On Tuesday, he traded the best prospect in baseball — infielder Yoan Moncada — as the headliner in a four-player package to acquire Chicago White Sox ace Chris Sale.